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| 因特网的 IETF 所属的安全小组 | |||
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| 安全区; 安全面积 | |||
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Security Area : 14 phrases in 5 subjects |
| Air defense | 3 |
| China | 4 |
| Electronics | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Space | 3 |
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